Eris | |
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Eris with Dysnomia, its only moon. | |
Description | |
Diameter: | 2,400 km |
Orbital Position | 5 |
Average distance from Sun: | 96.6 AU |
Rotation period: | Unknown |
Orbital period: | 557 Earth years |
Moons: | 1 (Dysnomia) |
Eris is the most massive and second-largest TNO known in the Solar System. Eris was found in 2003 in the Kuiper belt and was given the temporary names "2003UB-313" and "Xena". In 2005, it was changed to Eris.
Tilted Orbit[]
Eris has an even more tilted orbit than those of Ceres, (10 degrees), Pluto (17 degrees) and MakeMake (28 degrees). Its orbit is inclined at a whooping 44 degrees similar to that of Tyche (which also has 44 degree orbit) and is so tilted that it crosses the orbits of MakeMake and Pluto.
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